Country-
spec. Set-
tings
Men
u
level
Display/
Setting
Action in this menu/meaning
Priority – Reactive cur-
rent limitation | Dy-
namic reactive current
Priority: Reactive current priority
Dynamic grid support active on account of immunity to interference and
fast feeding of residual current. The inverter feeds additional reactive
current according to the formulae (2) and (4).
Priority: Effective current priority
Dynamic grid support active on account of immunity to interference and
fast feeding of active current with dynamic reactive current. The in-
verter feeds in as much active power as available. If, as a result of this,
the maximum continuous current is not achieved, the device supplies
additional reactive current according to the formulae (2) and (4) up to
the limit of continuous current.
Zero current under-
voltage threshold
Zero current over-
voltage threshold
0 – 184 V / 253 – 340
V
If one or more phase/phase or phase/neutral conductor voltages move
above the configured threshold, the inverter changes to zero current
mode. The total current is regulated to virtually zero.
Reference voltage
U< - U>
Nominal value of the phase/neutral conductor voltage used as a refer-
ence voltage for formula (1) and (3). Adjustable in the range from level 1
undervoltage protection to level 1 overvoltage protection.
Constant K negative se-
quence dip
Constant K negative se-
quence swell
k 0 – 10
2
Amplification factor for the negative sequence used in the calculation of
the reactive current using formulae (2) and (4) Can be configured inde-
pendently for drops and spikes.
Constant K positive se-
quence dip &
Constant K positive se-
quence swell
k 0 – 10 2
Amplification factor for the negative sequence used in the calculation of
the reactive current using formulae (2) and (4) Can be configured inde-
pendently for drops and spikes.
Dead band
0 - 100 [% Uref]
10.0
Dynamic grid support through fast feeding of residual current activated
in the case of voltage events with a voltage change greater than the
dead band.
Dynamic reactive cur-
rent only
Off | On
Standard: The reactive current according to the formulae (2) and (4) is
fed as additional reactive current. The means that sum of the pre-fault
and additional reactive current is fed in.
Only dynamic: The reactive current according to the formulae (2) and (4)
is fed in as absolute reactive current. This means that regardless of the
reactive current before the voltage event, only the reactive current is
fed in according to the formulae (2) and (4) is fed in during the voltage
event.
Dead band mode
Mode 1 | Mode 2
Mode 1: When calculating the reactive current, the value of the dead
band is not subtracted from the amount of voltage change.
As such, formula (2) applies to overvoltage and undervoltage incidents.
Mode 2: When calculating the reactive current, the value of the dead
band is subtracted from the amount of voltage change. For overvoltage
and undervoltage events, formula (4) therefore applies:
I
b
1
I
Powador 30.0-72.0 TL3
Page 66
EN
